I received some of Lego’s robot building kit for Christmas last year and succeeded in building a little car that drove forwards, turned left and then got stuck under the coffee table. Japanese robot fan Akiyuki has gone one better than that (and then one better again and then about a million better on top of that) by constructing a lego machine that gives small toy balls the kind of epic journey usually reserved for Greek mythological heroes. It’s kind of a Rube Goldberg machine except it’s entirely self sustaining and so doesn’t require any components to be manually reset.